WOW Skin Science AM2PM Sunscreen SPF 50 is a broad-spectrum, water-resistant and longer-lasting sunscreen. High SPF 50 ensures that your skin is protected for longer periods of time from the harmful effect of the UV rays. Zinc oxide, and titanium dioxide are natural UV ray blockers that prevent the rays from damaging your epidermis. Liquorice extract prevents the skin from darkening, while Moroccan argan oil, aloe vera extract, and vitamin E nourish your skin, and prevent premature signs of aging. Since it is water-resistant its efficacy remains even if you are perspiring or are swimming.